What is Internet Warrior?
1.
One who frequents message boards, acting tough and talking down to people to make themselves feel better.
TheJim22 was talking trash over at WBW, what an internet warrior.
2.
People with very empty lives that try to act tough on the internet, little realising they're making themselves look like total idiots. The only pleasure they have in life is signing into sites like YouTube and leaving stupid comments and sending people stupid messages. Usually they can barely spell or form a coherent sentence.
Internet warrior = Real life coward
Just look at the comments on almost any video on YouTube for an example of internet warriors.
See